GLOBAL DISTRIBUTION AND FIRST RECORD OF THE INVASIVE SPECIES Kellicottia bostoniensis (ROTIFERA: BRACHIONIDAE) IN TWO BRAZILIAN RESERVOIRS A

Ecossistemas aquáticos estão sujeitos à invasão biológica que por sua vez pode causar impactos principalmente nas populações nativas. Em ambientes de água doce, os rotíferos são abundantes e altamente adaptados. O rotífero norte americano Kellicottia bostoniensis (Rousselet 1908) está distribuído amplamente na Ásia, Europa, América do Norte e do Sul, habitando reservatórios, lagos e rios desses continentes. Aqui, a ocorrência de K. bostoniensis é registrada pela primeira vez nos reservatórios Atibainha e Cachoeira (Sistema Cantareira, Brasil). Os mecanismos da dispersão são discutidose essa nota amplia o limite da distribuição de K. bostoniensis no estado de São Paulo. ABSTRACT - DISPERSION AND FIRST RECORD OF THE INVASIVE SPECIES Kellicottia bostoniensis (ROTIFERA: BRACHIONIDAE) IN TWO BRAZILIAN RESERVOIRSAquatic ecosystems are subjected to biological invasions which can causes imbalances mainly in the native populations. In most freshwater environments rotifers are abundant and highly adapted. The North American rotifer Kellicottia bostoniensis (Rousselet 1908) is widely distributed in Asia, Europe, North and South America inhabiting reservoirs, lakesand rivers of these continents. Here, the occurrence of K. bostoniensis is recorded for the first time in Atibainha and Cachoeira reservoirs (Cantareira System, Brazil). Dispersion mechanisms are discussed and this note extends the limit distribution of K. bostoniensis in São Paulo state.Aquatic ecosystems are subject to biological invasions causing imbalance mainly in the native populations. In most freshwater environments rotifers are abundant and highly adapted. The North American rotifer Kellicottia bostoniensis (Rousselet 1908) is widely distributed in Asia, Europe, Central and South America inhabiting reservoirs, lakes and rivers of these continents. Here, the occurrence of K. bostoniensis is recorded for the first time in Atibainha and Cachoeira reservoirs (Brazil). Dispersal devices are provided and this note extends the limit distribution of K. bostoniensis in São Paulo state